MADISON, Wis. – Officials at the Tomah Veterans Affairs Medical Center have yet to answer whether patients took potentially bad medicine last month following a temperature surge at the facility’s outpatient pharmacy.

Asked whether the matter is under investigation, Gowan said he didn’t know if he would “term it an investigation.”

“We’re still working on getting the answers to the questions you asked,” Tomah VA Medical Center spokesman Matthew Gowan said Monday morning, nearly four days after MacIver News Service first reported on the climate-control malfunction that occurred on Sunday, Dec. 18.

Sources say the temperature inside the pharmacy spiked to as high as 97 degrees for several hours.

One source, who asked not to be identified, said pharmacy directors OK’d the release of medications for about four hours, until administrators told them to stop distributing the drugs at around noon. Pharmacy employees were told to tell veterans that there was a “supply issue,” according to the source.

Gowan confirmed that the pharmacy experienced a “temperature fluctuation” that was “fixed the same day.” He said patient care was not affected, and that there was not a medicine shortage.

As of Monday, however, Gowan said he could not provide explanations as to why the fluctuation occurred or whether medicines subjected to the high temperatures were distributed to patients, as one veteran told MacIver News. He also couldn’t comment on whether the climate-control issue has been an ongoing problem at the pharmacy, as one source said.

Asked whether the matter is under investigation, Gowan said he didn’t know if he would “term it an investigation.”

“Have our facilities looked into why this would have happened? Absolutely. That situation is being looked into,” the spokesman said.

Medications should not be exposed to temperatures higher than 86 degrees, pharmaceutical experts warn.

Narcotic medications, such as painkillers, are stored in a separate air-conditioned vault, so were not subjected to the heat spike, according to one source.

Pharmacists were instructed to pull antibiotics from the Tomah VA Medical Center’s inpatient side to fill those prescriptions, a patient told MacIver News Service.

Everything else exposed to the high heat was eventually pulled and pharmacists told medical center patients that they would fill prescriptions as soon as possible in the coming days, according to one source familiar with the situation.

A 2016 report from the Senate Homeland Security and Governmental Affairs Committee, chaired by Wisconsin U.S. Sen. Ron Johnson (R-Oshkosh), found “systemic failures” of misconduct and abuse plagued the medical center.

“You name it. If it wasn’t a narcotic or controlled substance, it was everything else,” the source said. “Even glucose test strips – those were trashed.”

Dozens of the pharmacy’s customers could be affected, the source added.

Exposure of medicines to high temperatures can reduce their efficacy, in some cases causing serious health problems.

“For patients with such chronic illnesses as diabetes or heart disease, a damaged dose of crucial medicine, like insulin or nitroglycerin, can be life-threatening. But even common medicines can break down with potentially harmful effects, and you can’t always tell by looking at the pill or liquid that a problem has occurred,” Janet Engle, a pharmacist and past president of the American Pharmacists Association told the New York Times in 2011.

One source who spoke to MacIver News Service said the medications subjected to the heat spike in the pharmacy included in pill form some treatments for serious health disorders. Some were anti-diabetic medicines such as Metformin, anti-epileptic drugs like Gabapentin, anti-viral medications and Lidocaine patches, and wound cleaners, according to the source. Over-the-counter meds, too, from eye drops to suppositories, may have been compromised.

The pharmacy’s troubles come three years after news first broke of widespread overprescription of painkillers at the VA medical center – a facility pejoratively billed by some as “Candy Land.” At least one veteran died of a drug overdose at the Tomah VA hospital, sparking several investigations. A 2016 report from the Senate Homeland Security and Governmental Affairs Committee, chaired by Wisconsin U.S. Sen. Ron Johnson (R-Oshkosh), found “systemic failures” of misconduct and abuse plagued the medical center.

Nearly a year ago, David Houlihan, Tomah’s chief of staff who was called the “candy man” for his alleged liberal opioid prescription policies, surrendered his Wisconsin medical license.

In November, at least six veterans filed a class-action lawsuit against the federal government following reports that a Tomah VAMC dentist may have spread blood-borne infections among his patients in using unsterilized equipment.